| abstract |
The present invention provides a viscoelastic member that exhibits different properties on one surface and the other surface of a member, has a transparent appearance, and has little contamination to an object. A viscoelastic member of the present invention is a member having a laminated structure of a polymer layer and a monomer absorption layer capable of absorbing at least one monomer component constituting the polymer, the polymer layer comprising: The present invention is characterized in that it is an unevenly distributed polymer layer containing an elastomer in a form that is distributed unevenly at the interface opposite to the monomer absorption layer or in the vicinity of the interface. In the viscoelastic member, a cover film may be laminated on the surface of the elastomer uneven distribution polymer layer opposite to the monomer absorption layer. Further, the vicinity of the interface on the side opposite to the monomer absorption layer is preferably within 50% of the total thickness in the thickness direction from the interface on the side opposite to the monomer absorption layer. [Selection figure] None |